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(No Model.) 3 Sheets-Sheet l..

J. FRANZMANN. BUN@ CUTTING AND GOMPRBSSINGMAGHINE.

No.254,298. Patented Feb. 28,1882.

(No Model.)

J. FRANZMANN.

BUNG GUTHNG AND GOMPRBSSING MACHINE. No.. 254,298.

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3 Sheets-Sheet 2.

Patented Peb. 28,1882.

invento I' 3 Sheets-Sheet 3.

J. FRANZMANN. BUNGv GUTTING AND GOMPRBSSING MACHINE.

(No Model.)

Patented Feb. 28,1882.

uve-ni or Fig UNITED STATES PATENT Erica.

JACOB FRANZMANN, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO HENRY VARWIG, OF SAME PLACE.

BUNG CUTTING AND COMPRESASING MACHINE.-

SPECIFICATION forming part of Letters Patent No. 254,298, dated February 28, 1882.

i Application med May 12,1881. (No model.)

To all whom it may concern:

Be it known that I, JACOB FRANZMANN, of the city of Cincinnati, county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Bung Cutting and Compressing Machines, of which the following is a specification. y

This invention relates to machines for making bungs. Its object is to rapidly and smoothly cut what is known as tlat bungs,77 and to compress the same into the proper shape, stamping them at the same time with a name, card, or trade-mark.

In the accompanyingdrawings, forming part of this specilcat-ion,in which similar reference letters indicate identical parts -in the various views, Figure l is a view taken in front of one end of my machine, showing the mechanism for compressing, stamping, and discharging the bungs. A portion of the box for feeding the lanks to the hollow cutter is broken out to expose the screw-plunger and adjustable interior guides. One of the front standards is also broken'off to show the compressing-plunger and the stationary die in vertical section. Fig. 2 is an enlarged end view of the frame in which is mounted the compressing mechanism. The plunger and its guides are shown in vertical section. The feeding devicesV in this view are removed. Fig. 3 is a top plan view of the mechanism for feeding the bungs to the compressing and stamping dies. Fig. .tis an axial section of the compressingdie greatly' enlarged. Fig. 5 is a similar View of the stationary die and name-stamp. Fig. 6 is a longitudinal central section of the end of the screwplunger for feeding the blanks and forcing them through the hollow cutter. Fig. 7 is an axial section of the cog-wheel and nut by which the screw-plunger is driven. Fig. 8 is a top plan view ofthe head-stock, the plunger-driving mechanism mounted therein, and

part of the boxes through which the bungblanks are fed to the cutters. Fig. 9 is alongitudinal horizontal section of the end of one of the feed-boxes. Fig. 10 is a vertical longitudinal section of the same, and Fig. 11 is a Vtransverse vertical section through line x :vof

Fig. 9.

The compressing mechanism is mounted in a vstrong frame composed of four upright standards, A, made preferably of cast-iron, framed together by iron cross-braces. This. frame is to he rmly secured tothe door or foundation and braced at the top to the timbers of the building. Secured to the front of this frame is an open-top cast-metal box, B, both ends of which extend beyond the frame. One end is secured to the frame C, which supports the mechanism by which screw D is alternately driven through the trough B and a similar trough which extends in the same plane from the opposite side of frame C. In each outer end ot' boxes B are secured hollow cutters E. The axes ot' the cutters are in the same plane as the axis of screw D. The edges of the cutters are sharpened back upon opposite sides, leaving two opposite projecting points, so as to give a drawing cut as the square blanks are forced through the cutters.

Within trough B are three metal guide-strips, F, which have finsf projecting through slots in the walls of box B. These strips are adjusted at equal distances from the axis of screw D to receive the blank to be cut, and are held in the desired position by set-screws tapped' through or into bosses which are cast upon the exterior walls ot' box B. The bungblanks, which are square blocks of the proper size to form the bun gs, are placed on edge in the space formed by the strips F, andare held down by a hinged latch,f. The screw D is driven by a nut, G, upon which is keyed a cog, H. This cog meshes into and is driven by a cog, I, secured upon thedriVing-shaft J. Upon the driving-shaft are four pulleys, the two outside ones being loose and the inner ones keyed to to the shaft. The shaft is. driven alternately in opposite directions, as a cross or straight belt from the same main shaft is shipped onto oneortheotherof the tight pulleys. Thescrew is by this means advanced alternately in the direction of each of the hollow cutters fixed in the opposite ends ofthe box B. To avoid driving the screw D against the cutters E, the belts are automatically shipped upon the loose pulleys when the screw has reached the limit of its stroke in either direction by crosspieces d,

IOO

5 K, throws the belt upon the loose pulley, and

stops the machine. Upon each end ofthe screw D is secured a hard wood shaft, d. These are detachable and are to be changed to correspond with the different-sized bun gs and the differro ent-sized cutters through which pieces d pass to discharge the bungs through the hollow cutters and into receivin g-tuhes L,which are placed in line with -the cutters and opposite their discharge ends.

The operation ot' the cutting part of my machine is as follows: Square blocks, of the requisite size to l'orm bangs, are cutfrom strips, a number of which are held with their tlat sides together and fed to a crosseut-saw, the blanks 2o passing as they are severed into a sheet-metal trough suitably placed to receive them. The trough should be of a size to contain enough blanks to nearly lill the space within guidestrips F between the retracted screw and the cutter E. The screw being now, for instance,

in the right-hand end of box B, the hinged bar f above the left-hand box B is thrown up, and one end of the trough containing the bungblanks is slipped under it with the end blank 3o against the hollow cutter and the trough in an inclined position above the lower strip F. Now, by pressing the blanks in the direction of the cutter with one hand the trough is withdrawn with the other, leaving the blanks on 3 5 edge within the space between the feed-strips.

The barf is now lowered upon the row of blanks and secured by the latches f 3, which are turned over it and buttoned by the T-catches f 4. The blanks are placed between the guides 4o withy the grain of the wood running horizontally across the feed-box, and the points ofthe cutter E are vertically opposite each other, so that the corners of the blanks are trimmed oft' with drawing cuts. When the machine is started the blanks are forced through the hollow cutter by screw D into the receiving-tube L. During this operation the opposite box B is being supplied with blanks in the manne-r above described,so that when thebelt is shipped 5o upon the loose pulley by cross-piece d the other belt may be run onto its tight pulley and the screw-plunger driven in the opposite direction, forcing the blanks through the opposite cutter.

The mechanism to compress the cylindrical 5 5 bung-blanks into the conical-shaped bun g and to stamp them with the name of the manufacturer or user will now be described.

The hollow compressing-die M is secured in the lower end of ahollow plunger, N, which is 6o driven by a pitman, O, actuated by an eccentric secured upon the shaft P in the upper part of the machine-frame.

The stationary die Q occupies a circular cavity in table R, which is vertically adjustable between standards A.

The stationary die, Fig. 5, has an annular groove, q, to receive the lower end ofthe die M, and a central depression to receive the name-die q', which is loosely dropped into it. By this arrangement the same letterdie may be used for several sizes of bun gs.

S are slides tongued upon the edges to enter grooves in the guides S', which are supported upon angle-pieces S", which arevertically adjustable by means of set-screws and slots on the cross-braces, which extend between the u pri ghts A. To these slides are secured frames s. These frames extend beyond the uprights A, and have centrally secured to their center cross-pieces pushers s', which extend inward upon the die-table lt. 'lhe slides and their frames are actuated through levers V by cams T, secured upon shaft P. Springs Y hold the upper ends of the levers in contact with their cams and return the slides to the position shown, Fig. 3,at`ter theblank has been pushed from the bottom of the tubular socket above the die Q.

Within the hollow plunger N is a rod, n, the upper end of which is screwed through a cross` piece which is secured to the frame of the machine, and passes through the b ifurcated end of the pitman. The rod extends through the hollow plunger and to near the end ofthe compressing-die M, for the purpose of discharging the compressed bung from the die at the upward stroke ofthe die and plunger.

Two springs, W, are secured upon table R. The curved lingers of these springs occupy positions upon each side ot' the stationary die and stop 'the bung-blanks in position to be acted upon by the dies. The upper edges of the springs iiare outward to permit the die M to pass down between them, expanding the fingers after the die has commenced its action upon the blank. The table It and slide-carriers S' are adjusted to the same height for the purpose of compressing bungs of di'erent thicknesses. The rods U have their fulcrums on ypins in cross-piece u. The tulcrum-pins passthrough slotsinthelevers,so thattheymay be also elevated or lowered with the slides S.

The operation of this part of my machine is as follows: The tubes L,which have been filled with circular blanks from cutters E, are placed in sockets/L upon each side of the machine, and pins which had been passed through the lower end of the tube to retain the blanks are withdrawn, letting the blanks drop down through the sockets L', the lower blank rest-ing upon the table R below the socket, thelower end of which is a little more than the thickness of a bung above the table. The pusher s, as the slide is drawn toward the center of the machine, pushes the lower blank into the bite of lingers fw above the die Q. As the pusher is withdrawn by spring Y from beneath the socket L another bung-blank drops upon the table. In the meantime the die has been forced down and the first blank compressed and stamped. As the next blank is carried above the die Q the rst is pushed 0E and discharged through an open IOO IIO

ing in the table. The operation continues until the tube L is empty, (which fact can be observed through the slot in the side of the tube,) when it can be exchanged for a filled tube before the blanks remaining in the socket are all compressed. Thus the operation of the machine is continuous.

Instead of the screw-plunger shown, a rack and pinion maybe substituted; and if it is only desired to cut bungs of one size of the same diameter the interior adjustable strips, F, may be entirely dispensed with.

l. The combination, substantially as before set forth, of the elongated covered feed box adapted to receive a number of blanks ata time, the stationary hollow cutter secured at the end thereof, the elongated plunger or follower, and a screw to feed the follower through the box for the purpose of forcing the square blanks through the hollow cutter.

2. The combination of two elongated covered feed-boxes arranged upon each side of a plunger-driving mechanism and adapted to receive a number of blanks at a time, the stationary hollow cutters xed at the opposite ends of said feedboxes,with the elongated follower D, and a screw to alternately drive said follower from one of the boxes into the other, substantially as specified.

3. In a bungmachine of the character described, the combination of two feed-boxes, B, the plunger-driving mechanism mounted in frame C centrally between the said boxes, with the plunger D, and cross-pieces d, secured to the plunger near each end thereof, and the shippers K, having projections in position to be acted upon by the cross-pieces d, to automatically stop the mechanism when the plungef has reached the limit of its stroke, substantially as specified. 4. The combination, substantially as hereinbefore set forth, of feed-box B, hollow cutter E, secured at the end thereof, with the screw-follower D, nut Gr, and drivingwheel H, keyed upon said nut, for the purpose set forth.

5. In a machine for cutting bungs, thecombination, substantially as specified, of box B,4

follower D, changeable hollow cutter E, and the adjustable guide-strips F, to adapt the machine to feed and cut different sizes of bungs.

v6. The combination, substantially as before set forth, of the elongated open-top feed-box adapted to receivea number ot'blanks at a time, the elongated plunger, and suitable mechanism to feed the same back and forth through said box, and the hollow cutter arranged at one end ofsaid box,With the hinged barfl adapted to be elevated for the purpose of supplying the box with blanks, and to be secured upon said blanks to prevent them from being forced up -by the plunger as said blanks are fed tok the hollow cutter.

7. The combination, substantially as specified, in a bung-machine, of the reciprocating hollow plunger N, fixed rod a, com pressing-die M, and fixed die Q, having the annular groove q, with feeding mechanism consisting of a sliding frame,s,pusher s', actuated by cams T and levers V, and the spring-fingers W, to hold the blanks until acted upon by the compressingdie.

'JACOB FRANZMANN.

Witnesses:

HENRY VARWIG, GEO. J MURRAY. 

